ورقة عمل الأحياء لامتحانات القبول في التمريض مع الإجابات

What is the pH of pure water at 25 °C?

1. A1
2. B0
3. C14
4. D7

What is a stem cell?

1. AA plant cell found only in the stem
2. BA cell that carries oxygen in the blood
3. CA fully specialised cell that can no longer divide or change its type
4. DAn unspecialised cell that can divide and become other cell types

What is a karyotype?

1. AA diagram of a family's inheritance pattern
2. BA map of the organelles inside a cell
3. CA picture of a cell's chromosomes arranged in pairs by size
4. DA list of all the proteins that a cell makes during its life

What is meant by independent assortment in meiosis?

1. AHomologous pairs line up randomly, so gametes get different mixes of chromosomes
2. BDNA is copied separately in each chromosome
3. CSister chromatids stay joined until the end of meiosis, so all gametes are identical
4. DAll chromosomes from the mother go into the same gamete

لماذا تصطبغ البكتيريا موجبة الغرام باللون البنفسجي في صبغة غرام؟

1. Aجدارها الرقيق مغطى بغشاء خارجي غني بالدهون
2. Bليس لها جدار خلوي على الإطلاق
3. Cتحتوي على اليخضور
4. Dيحتفظ جدارها السميك من الببتيدوغليكان بالصبغة البنفسجية

Which type of graph is best for comparing the number of patients with each ABO blood type?

1. AA line graph
2. BA scatter plot
3. CA bar graph
4. DA histogram

Home pregnancy tests use antibodies that bind the hormone hCG. Why do they react with hCG and not with other proteins in urine?

1. AUrine contains no other proteins at all
2. BThe hormone hCG is a type of antibody itself
3. CAntibodies bind every protein but change colour only with hCG
4. DEach antibody binds a specific antigen shape

Cyanide stops mitochondria from making ATP. Which process in the affected cells would stop first?

1. AFacilitated diffusion of glucose down its gradient
2. BSimple diffusion of oxygen into the cell
3. COsmosis of water across the membrane
4. DPumping of Na⁺ and K⁺ by the sodium-potassium pump